Jacketed type corrugated pipe compensator

Abstract

The invention discloses a jacketed type corrugated pipe compensator which comprises an inner compensator body, an outer compensator body, ring plates and a lug plate, wherein the inner compensator body and the outer compensator body are coaxially sleeved with each other, and the inner compensator body and the outer compensator body are positioned and connected through the ring plates and the lug plate; the inner compensator body comprises an inner corrugated pipe and an inner pipe opening, the two ends of an inner middle connecting pipe are coaxially and sequentially connected with the inner corrugated pipe and the inner pipe opening in a sealing mode respectively, and the inner wall of the inner corrugated pipe is fixedly connected with a flow guide pipe in the medium flow direction; the outer compensator body comprises an outer corrugated pipe and an outer pipe opening, and the two ends of an outer middle connecting pipe are coaxially and sequentially connected with the outer corrugated pipe and the outer pipe opening in a sealing mode respectively; a pull rod penetrates through through holes uniformly distributed in the end faces of the ring plates and the end face of the lug plate, the two exposed ends of the pull rod are locked by means of nuts, and a direct movement tensile structure that the inner compensator body and the outer compensator body are oriented through the through holes of the lug plate is formed. The corrugated pipe compensator is of a jacketed type structure, on the basis that axial compensation is not influenced, the aim of carrying out heat preservation on or heating medium steam in the inner compensator body is achieved by means of heat provided by heat media during circulation inside a jacket, and it is guaranteed that production is conducted in order.

Description

technical field [0001] The invention relates to a pipeline compensation device, in particular, the invention relates to a jacket type compensator. The compensator adopts a double-layer corrugated tube coaxial sleeve structure, and heat tracing medium circulates in the interlayer to adjust the temperature of the built-in medium in the inner bellows. Background technique [0002] Most of the products in the petrochemical industry are in liquid state, and the medium flow between the front and back processes in the production process is mainly transmitted through pipelines. The medium flow with temperature and pressure produces corresponding internal stress on the pipeline, and the internal stress is destructive. From the perspective of safe production, a pipeline compensator must be installed in the relevant pipeline. In order to stabilize the temperature of the medium flow transmitted in the pipe in the project, casing heat tracing is usually designed along the pipeline. The...

AI Technical Summary

Problems solved by technology

However, the prior art product is a single-layer tube structure with exposed outer wall and does not have heat tracing conditions, so that the medium flowing through the corrugated compensator is cooled to varying degrees

The cooling of the medium flow will affect the quality of subsequent production if it is light, and the severe one will cause partial solidification of the medium flow, causing pipeline blockage and affecting normal production

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